Microsoft Works Database
From Just Solve the File Format Problem
A partial parser is available here: https://bitbucket.org/jesseweinstein/sundry-python-stuff/src/82df96b0efd6acd144d39a18c6a244dced577664/msworks.py?at=master
Documentation of the format (based on the parser above) is at: http://en.wikipedia.org/wiki/User:JesseW/wdb_format
See Ext:wdb for the User:Bender-created links.